Published 1975 | Version v1
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Lifetime of the metastable state of singly ionized helium

Creators

Description

The natural lifetime of the 2S state of He+ has been measured in a decay-in-flight experiment. The result, tau/sub 2S/ = 1.928 (+0.060) msec, is in agreement with the value of 1.899 msec predicted by the theory of two-photon decay. The agreement between experiment and theory implies an upper limit of /delta/ less than or equal to 4.0 x 10-5 for 2S-2P parity mixing in helium ions

Additional details

Publishing Information

Imprint Pagination
170 p.

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
8279634
Subject category
S74: ATOMIC AND MOLECULAR PHYSICS;
Resource subtype / Literary indicator
Thesis, Non-conventional Literature
Descriptors DEI
HELIUM IONS; LIFETIME; METASTABLE STATES; P STATES; PARITY; S STATES; TIME-OF-FLIGHT METHOD
Descriptors DEC
CHARGED PARTICLES; ENERGY LEVELS; EXCITED STATES; IONS; PARTICLE PROPERTIES

Optional Information

Notes
University Microfilms Order No. 76-12,730.